Theming
The theming feature lets you customize the look and feel of your Nextcloud instance to match your organization's design (or - if for personal use - your own style). You can replace the Nextcloud logo and background images with your own assets, customize colors and slogans, and add dedicated legal and privacy links.
Theme customization is provided by the shipped and always-enabled theming app. Use the Theming section within the Administration settings menu to access all theming-related settings.
Customize the appearance of Nextcloud
You can change the following aspects of your instance's appearance:
Name (e.g., ACME Inc. Cloud).
Web link (e.g., https://acme.inc/).
Slogan.
Primary color: Used for important buttons, checkboxes, and folder icons.
Background color: Used when no image is set; header bar icon color is also derived from this.
Logo: Appears in the header and on the login page (default size: 62x34 px).
Background and login image: Sets the page background.
Additional legal links: Legal notice and privacy policy.
Custom header logo and favicon: Optionally override the auto-generated favicon based on your logo.
Disable user theming: Prevent users from changing backgrounds and colors. Toggle this to enforce your custom theme.
Configure theming via CLI
You can also configure theming using the occ theming:config command.
Available settings include:
name, url, imprintUrl, privacyUrl, slogan, background_color, primary_color. Example: occ theming:config name "My Example Cloud"
background, logo, favicon, logoheader. Example: occ theming:config logo /tmp/mylogo.png
disable-user-theming (yes/no). Example: occ theming:config disable-user-theming yes
To use a color (instead of an image) for the background:
occ theming:config background_color "#0082c9" occ theming:config background backgroundColor
Icon theming
Based on your settings, Nextcloud will automatically generate favicons and a header logo using your logo and theme color.
This requires:
The PHP imagick module.
SVG support for imagick (e.g., libmagickcore-7.q16-10-extra on Debian 13 and libmagickcore-6.q16-7-extra on Ubuntu 24.04).
Branded clients
The theming app supports changing the URLs for the mobile apps (Android and iOS) that appear when users access the web interface from mobile devices. By default, these links point to the official Nextcloud apps, but you can set them to branded versions.
Set custom app links using the occ command:
occ config:app:set theming AndroidClientUrl --value "https://play.google.com/store/apps/details?id=com.nextcloud.client" occ config:app:set theming iTunesAppId --value "1125420102" occ config:app:set theming iOSClientUrl --value "https://itunes.apple.com/us/app/nextcloud/id1125420102?mt=8"